{"product_id":"neo-classic-500w-monoblock-amplifier-pair","title":"Neo-Classic 500W Monoblock Amplifier (Pair)","description":"\u003cp\u003eThe Manley 500 and 250 Watt Monoblocks are our most powerful push-pull production-models. Both the circuit design and the selected componentry have been refined over years and years of development. Reliability that you can depend upon combined with musical accuracy and emotional authority is what these amplifiers promise- and deliver. They are able to switch operation modes allowing the listener to choose between the sonically seductive qualities of triode and the more powerful Ultra-Linear configuration. We use big, beefy reservoir capacitors in the high voltage supplies giving plenty of instant energy for dynamic performance of transient peaks and bass impact and weight which often exceeds that of rival solid-state amplifiers. We run high voltages on the plates of the output tubes but operate them at lower current which will result in their longer life. Although each output tube has its own bias-adjust, We carefully fit each amplifier with computer-batched tubes for optimum performance. The bias adjustment pots and measuring points are conveniently located behind the oval front panel insert.\u003c\/p\u003e\n\u003cp\u003eTo avoid a heavy power drain when the cold amplifier is first switched on, we conceived a \"Soft-Start\" mode which also functions as an \"Ever-Warm\" position allowing the amplifiers to be always warmed up for pleasurable listening. Each amplifier only consumes 30 watts of power in Ever-Warm mode. A blinking green LED reminds the user that the amplifier is in warm-up mode because as all the power supplies are at half-voltage, the amplifier will still operate at half power when the Ever-Warm mode is engaged, so the user should use the MUTE switch when in this mode.\u003c\/p\u003e\n\u003cp\u003eThe front-panel mute switch and angled-back chassis make it easier to hook up the interconnects, speaker cables, and IEC power cord.\u003c\/p\u003e\n\u003cp\u003eIn our own in-house magnetics department, our R\u0026amp;D team completely redesigned all of our output transformers in 1998 with the goal to reclaim that luscious rich mid-range of our vintage designs. In 2013 we reworked the output transformer to operate the output stage in Ultra-Linear mode which is a great sounding balance between the detail of triode and the brawn of Tetrode. We also specifically set out to achieve a deeper bottom register at higher power with lower distortion. Hours and hours of listening tests, measurements, and fine-tuning brought an exciting and stunning result to our ears. We hope you will agree.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eALL-TUBE monoblock design 10 x KT90EH Electro-Harmonix Russian output tubes\u003c\/p\u003e\n\u003cp\u003eDriver Stage: High current double 12BH7EH (x2)\u003c\/p\u003e\n\u003cp\u003eInput Tube: 12AT7\u003c\/p\u003e\n\u003cp\u003eBALANCED \u0026amp; UNBALANCED inputs: RCA and XLR jacks (switchable)\u003c\/p\u003e\n\u003cp\u003eMANLEY IRON Input Transformer for the XLR: 2:1 ratio designed and wound at Manley Labs\u003c\/p\u003e\n\u003cp\u003eMUTE switch: on front panel\u003c\/p\u003e\n\u003cp\u003eTRIODE \/ Ultra-Linear output mode switching: on front panel\u003c\/p\u003e\n\u003cp\u003eSOFT-START turn on mode: minimizes in-rush current by first powering up amplifier to half voltages\u003c\/p\u003e\n\u003cp\u003eEVER-WARM mode: for standby keeps tubes warmed up at half voltages\u003c\/p\u003e\n\u003cp\u003eMANLEY IRON Output Transformer: designed and wound at Manley Labs\u003c\/p\u003e\n\u003cp\u003eFront panel bias measurement and adjust: Concealed under the black oval insert\u003c\/p\u003e\n\u003cp\u003eOutput Tube Standing Current: 30 mA\u003c\/p\u003e\n\u003cp\u003eSet Bias for: 300 mVDC measured across each bias tip jack to ground\u003c\/p\u003e\n\u003cp\u003eLarge filter \/ reservoir capacitors: 3800 uF x 2\u003c\/p\u003e\n\u003cp\u003eAngled rear of chassis: provides for easy connections\u003c\/p\u003e\n\u003cp\u003eWBT binding posts: CE compliant for European models\u003c\/p\u003e\n\u003cp\u003eInput Sensitivity RCA: Triode = 1.9 V; UL = 2.10 V for full power into 5 Ohms\u003c\/p\u003e\n\u003cp\u003eInput Sensitivity XLR: Triode = 4.25 V; Tetrode = 4.67 V for full power into 5 Ohms\u003c\/p\u003e\n\u003cp\u003eInput Sensitivity RCA Triode: 118 mV; UL = 103 mV for 1 watt into 5 Ohms\u003c\/p\u003e\n\u003cp\u003eInput Sensitivity XLR Triode: 265 mV; UL = 228 mV for 1 watt into 5 Ohms\u003c\/p\u003e\n\u003cp\u003eGain RCA: Triode = 25.5 dB; UL = 26.8 dB\u003c\/p\u003e\n\u003cp\u003eGain XLR: Triode = 18.5 dB; UL = 19.8 dB\u003c\/p\u003e\n\u003cp\u003eInput Impedance RCA: 130 kOhm @ 1KHz\u003c\/p\u003e\n\u003cp\u003eInput Impedance XLR: 178 kOhm @ 1KHz; 20 kOhms @ 20KHz; 28 kOhm @ 20Hz\u003c\/p\u003e\n\u003cp\u003eActual Output Impedance Triode: 0.959 Ohm\u003c\/p\u003e\n\u003cp\u003eActual Output Impedance Tetrode: 1.22 Ohm\u003c\/p\u003e\n\u003cp\u003eOptimum Speaker Load: 5 Ohms\u003c\/p\u003e\n\u003cp\u003eDamping Factor Triode: 8.34\u003c\/p\u003e\n\u003cp\u003eDamping Factor Tetrode: 6.55\u003c\/p\u003e\n\u003cp\u003eS\/N Ratio: 74 dB BW 22 Hz-22 kHz; 84 dB A-WGT at 1 Watt into 5 Ohms\u003c\/p\u003e\n\u003cp\u003eDynamic Range: 110 dB A-WGT\u003c\/p\u003e\n\u003cp\u003eNoise Floor: -75 dBu or 100 µV BW 10Hz-500 kHz; -77.7 dB or 100 µV A-WGT 1 Watt into 5 Ohm w\/Shorted Input\u003c\/p\u003e\n\u003cp\u003eFlat Frequency response: Triode = 10 Hz - 30 kHz 1 Watt into 5 Ohms\u003c\/p\u003e\n\u003cp\u003eFull Power frequency response: Triode = 22 Hz - 22 kHz; UL = 22 Hz - 22 kHz to reach 1.5% THD into 5 Ohms\u003c\/p\u003e\n\u003cp\u003eDistortion: Triode = 0.03%; UL = 0.50% BW 10 Hz - 22 kHz at 1 Watt into 5 Ohms\u003c\/p\u003e\n\u003cp\u003eFull Power Triode: 200 W @ 1.5% THD into 5 Ohms\u003c\/p\u003e\n\u003cp\u003eFull Power UL: 470 W @ 1.5% THD into 5 Ohms\u003c\/p\u003e\n\u003cp\u003ePower Consumption: 48 Watts in \"EVER-WARM\" mode\u003c\/p\u003e\n\u003cp\u003ePower Consumption Idle: 492 Watts\u003c\/p\u003e\n\u003cp\u003eMaximum Power Consumption: 1320 Watts at full power\u003c\/p\u003e\n\u003cp\u003eOperating Mains Voltage: Factory set for 100V, 120V or 220-240VAC operation for original destination country's mains voltage.\u003c\/p\u003e\n\u003cp\u003eOperating Mains Voltage: changeable with power transformer replacement and fuse value change.\u003c\/p\u003e\n\u003cp\u003eMains Voltage Frequency: 50 Hz or 60 Hz\u003c\/p\u003e\n\u003cp\u003eMains Fuse 100-120VAC operation: MDA 10 Amp SLO-BLO Ceramic Time-Delay fuse\u003c\/p\u003e\n\u003cp\u003eMains Fuse 220-240VAC operation: MDA 8 Amp SLO-BLO Ceramic Time-Delay fuse\u003c\/p\u003e\n\u003cp\u003eB+ Fuse: MDA 1 1\/2A SLO-BLO Ceramic Time-Delay fuse\u003c\/p\u003e\n\u003cp\u003eBadge Illumination: Units produced before 4\/2003 use 8V, 0.3A \"Fuse-Lamp\" 1\/4\" X 1 1\/4\"\u003c\/p\u003e\n\u003cp\u003e- Serial numbers after N250188 use LED illumination which probably won't burn out\u003c\/p\u003e\n\u003cp\u003ePower Cord: Detachable IEC standard. Appropriate power cord supplied for destination country\u003c\/p\u003e\n\u003cp\u003eUnit Dimensions: W=19\" x D=13\" x H=9\" each\u003c\/p\u003e\n\u003cp\u003eUnit Weight: 72 lbs. each\u003c\/p\u003e\n\u003cp\u003eShipping Box Dimensions: 22\" x 19\" x 18\"\u003c\/p\u003e\n\u003cp\u003eShipping Weight: 83 lbs. each\u003c\/p\u003e","brand":"Manley","offers":[{"title":"Blue","offer_id":62808984060063,"sku":null,"price":30000.0,"currency_code":"CAD","in_stock":true},{"title":"Black","offer_id":62808984092831,"sku":null,"price":30000.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5532\/6111\/files\/21620_full_b1a5d2f7-96bd-4dd7-99ae-d657b90d1043.jpg?v=1780698952","url":"https:\/\/altitudoaudio.ca\/products\/neo-classic-500w-monoblock-amplifier-pair","provider":"Altitudo Audio","version":"1.0","type":"link"}